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Mesoscale Discussion 1137
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   Mesoscale Discussion 1137
   NWS Storm Prediction Center Norman OK
   0317 PM CDT Fri Jun 23 2017

   Areas affected...Middle and eastern TN...Northern/central
   AL...Northwest GA...Far eastern MS

   Concerning...Tornado Watch 365...

   Valid 232017Z - 232215Z

   The severe weather threat for Tornado Watch 365 continues.

   SUMMARY...Threat for damaging wind gusts and a tornado or two
   continues in and near WW 365.

   DISCUSSION...A broken line of convection has evolved across middle
   TN into central/northern AL and far eastern MS. Periodic bowing
   segments have developed along this line during the last 1-2 hours,
   and these may continue to develop through the late afternoon, given
   moderately strong, unidirectional southwesterly wind profiles. Ahead
   of the line, somewhat more discrete convection has developed ahead
   of the main line. Low-level shear remains sufficient for a tornado
   or two, particularly with the strongest of the more discrete cells
   ahead of the line, while sporadic damaging wind gusts will continue
   to be possible, especially with any bowing segments that persist. 

   Some severe threat will continue immediately south and east of the
   watch, though wind profiles become increasingly marginal with
   eastern/southern extent. At this point, it is uncertain whether any
   watch expansion or new watch issuance will be required to cover any
   threat outside of WW 365.

   ..Dean.. 06/23/2017

   ...Please see www.spc.noaa.gov for graphic product...

   ATTN...WFO...MRX...FFC...OHX...BMX...HUN...JAN...

   LAT...LON   32488870 33158793 34388681 35478659 36518595 36578468
               36578333 32968638 32368707 32318748 32328803 32358875
               32488870 

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